Required information (The following information applies to the questions displayed below.) Oslo Company prepared the following contribution format income statement based on a sales volume of 1,000 units (the relevant range of production is 500 units to 1,500 units); Sales $ 20,000 Variable expenses 12,000 Contribution margin 8,000 Fixed expenses 6,000 Net operating income $ 2,000 5. If sales decline to 900 units, what would be the net operating income? Net operating income